Improvement in hose-nozzles



STATES GEORGE O. WICKERS, OF LAWRENCE, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND HENRY I?. CHANDLER, OF SAME PLACE.

IMPROVEMENT IN HOSE-NOZZLES.

Specification forming part of Letters Patent No. 125,510, dated April 9, 1872.

Specication describing a new and useful Improvement in Hose-Nozzle, invented by GEORGE O. Wrcrrnas, of Lawrence, in the county of Essex and State of Massachusetts.

The invention relates to that well-known class of hose-nozzles which are provided with spreaders; and consists in improving them, as hereinafter fullydescribed and subsequently pointed out in the claim.

In the accompanying drawing, Figure l represents a longitudinal central sect-ion of a hose-nozzle with my improvement attached. Fig. 2 is an end view ot' the same. Fig. 3 is a cross-section ot' Fig. 1 taken on the line w m.

Similar letters of reference indicate corresponding parts.

A is the nozzle, which is screwed onto the hose in the ordinary manner. B is a collar around the nozzle. C is a blade-chamber, which rests against and is attached by the screws D to the collar B. The part which is in contact with the collar B is seen in the section, Fig. 3, the part being seen when looking -to the right from the section line ma'. This part ot' the chamber slips over the dischargenozzle A, leaving space in which to receive and operate the blades between the chamber and the nozzle, as seen in Fig. l. E is a ring, milled upon its outer side or periphery, or otherwise made so that it can bc readily turned with the hand of the fireman. This ring incloses the chamber, and its edge is in contact with thc collar B, as seen in Fig. l. F lrepresents the blades-six, more or less, in numbereach with a forked or slotted head, as seen in Fig. 3, and with a fulcrum pivot-hole just above the slot. g represents the slot, and h the fulcrum-hole, as seen in Fig. 1. The curve of the blade is seen in the same igure, but from the head the blade is bent to an angle ot' fifteen degrees, or thereabout, with the slot, and is also twisted so that its inner edge stands at about the same angle with the slot. I represents pins, which pass through and project from the inner side ot' the ring E, placed at regular distances apart and corresponding in number with the blades F. J represents pins attached to the inner side of the chamber C, which pins pass through the holes h of the blades, as seen in Fig. l. The blades act as levers, the power being applied at the short end bythe pins I in the slots gwhen the ring E is turned; the pins J being the fulcrums or pivots upon which the blades turn. By this short purchase and the peculiar form of the blades the latter are thrown into a position so that the bent and twisted portion will lie nearly horizontal, lapping over each other in the annular space around the nozzle and not interfering at all with the stream of water through the nozzle. This is the position seen in the-end view, Fig. 2.

The inner portion oi' the chamber has an openin g for each ot' the pins I of the movable ring E, so that the ring may be turned or moved bac-l; and forth a portion of a revolution. This motion is suliicient to throw the blades from the position seen in Fig. 2 to an upright position, and so that the points there ot' will meet over the center ot' the dischargenozzle, as seen in Figs. 1 and 3.

The inner edges 7c of the blades are made thin or brought to nearly a cutting-edge, while the backs of the blades are thick. The blades are thus made wedgeshaped in cross-section, so as not to disturb or retard but to eli'ectually divide and spread the stream otl Water. This is done as already stated by a slight turn ot the ring E. By this means the form or character of the stream discharged may be changed at the pleasure of the fireman, according to circumstances.

I do not limit or contine myseltl to the precise form or arrangement of any otl the. parts described, as they may be varied without departing from my invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The movable ring E, having pins I and stationary cylinder C having pins J, combined with spreader's having slots g in their shanks and fulcrumed on points h thereabove, as and for the purpose described. v

GEORGE O. WICKEBS.

Witnesses:

HENRY P. CHANDLER, ARETAS R. SANBORN. 

